Mixed


Ημέρα και Νύχτα

5
Average: 5 (2 votes)
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Αστρολογία και Ζωδιακός Κύκλος

5
Average: 5 (3 votes)
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Near Infrared Observations with Skinakas NIR Camera

0
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mars ein lebender planet

0
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Измерване височината на лунните планини

0
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Слънчеви петна

4
Average: 4 (1 vote)
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Слънчеви цикли

0
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Марс - една "жива" планета?

0
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